2005-2006年度山东省流行性感冒监测结果分析

Analysis of surveillance result of influenza in Shandong from 2005 to 2006

目的通过分析山东省2005-2006年度流行性感冒(流感)监测结果,显示流感的流行趋势,为控制山东省流感流行提供参考。方法总结、分析流感监测点流感样病例、病毒分离及血清学监测情况。结果2005-2006年度山东省4所监测医院报告的流感样病人就诊百分比10～12月呈递增趋势,1～3月呈递减趋势,但未出现明显的流行高峰。2月底至3月底共发生流感样病例爆发15起。本年度共分离到67株流感病毒,流行优势株为甲1亚型流感病毒。正常人群血清对A/PANA- MA/2007/99(H_3N_2)毒株、B/HONGKONG/330/01-LIKE毒株的抗体阳性率均为100%);对A/NEW CALEDONIA/20/99(H_1N_1)毒株抗体阳性率最低(65%)。结论流感样病例数与病原学监测结果基本吻合,可以用来反映流感活动的强弱,监测网络的敏感性还有待于进一步提高。

The study was conducted to find out the epidemic trend by analyzing the surveillance result of influenza for further control of the influenza epidemic in Shandong Province from 2005 to 2006 , Methods Influenza-like cases in surveillance spots, virus isolation and serological surveillance were summarized and taken into the analysis. Results The percentage of influenza-like patients＂ visits showed an increasing trend from October to December but decreasing from January to March without obvious epidemic peak, as reported by four surveillance hospitals in Shandong Province from 2005 to 2006. From the end of February to the end of March, 15 outbreak of influenza-like cases were observed. 67 influenza virus strains were isolated in this year, influenza virus （H1N1 being predominant. The antibody-positive rate of normal serum was 100% against A/PANAMA/2007/99 （H3N2） and B/HONGKONG/330/01-LIKE strains and at least 65% against A/NEW CALEDONIA/20/99（H1N1） strain. Conclusion The number of influenza-like cases coincided with the etiological surveillance result, and can be used to reflect the activity strength of influenza. The sensitivity of the surveillance network has yet to be further improved.